• Saudi Arabia's East-West Pipeline (Petroline) has resumed operations after a September 11 drone attack, easing supply fears but not yet back to full capacity.
  • Regional oil exports rebounded to 12.8 million bpd in September, though still well below pre-war levels.
  • Analysts warn that renewed attacks or shipping disruptions could quickly reverse the recovery.

Pipeline Restart Brings Relief, But Risks Remain

Saudi Arabia's crucial East-West Pipeline has resumed operations after a month-long shutdown caused by drone attacks, according to people familiar with the matter. The restart, which began during the week of September 22, marks a significant step in restoring the kingdom's oil export flexibility, but the system is still ramping up and not yet back to normal.

The 1,200-kilometer pipeline, known as Petroline, can carry roughly 7 million barrels per day (bpd) of crude from Saudi Arabia's eastern oil fields to the Red Sea port of Yanbu, bypassing the Strait of Hormuz. Before the September 11 attacks, it was transporting about 4-5 million bpd—equivalent to 4-5% of global oil supply. The drone strikes, which Saudi officials attribute to Iraqi militias, damaged three pumping stations and forced a precautionary shutdown.

"The restart eases an acute supply-security risk, but the system is still ramping up—not yet demonstrably back to normal, full-capacity operations," said an industry source who asked not to be identified.

Exports Rebound, But Below Pre-War Levels

Initial pumping resumed at reduced rates while Saudi Aramco (2222.SR), the state-controlled oil giant, rebuilt inventories at Yanbu and conducted pressure testing. As of September 24, tanker loading at Yanbu had not yet resumed, despite oil moving to Red Sea coast refineries. Two tankers scheduled for September 23 had not loaded, according to shipping data.

The impact on regional exports, however, has been substantial. Key Middle Eastern producers are expected to export about 12.8 million bpd in September, the highest level since the U.S.-Israeli war with Iran began in February. Saudi Arabia's exports are estimated at 5.4 million bpd, up sharply from 2.446 million bpd in August.

Much of this recovery has come from rerouting through Gulf terminals. Exports from Ras Tanura rose to about 3.6 million bpd in September from just 929,000 bpd in August, while exports through the Strait of Hormuz were projected at around 7.4 million bpd.

Market Implications: Bearish Signal, But Fragile

For oil markets, the pipeline restart adds barrels and optionality, reducing the immediate risk premium embedded in crude prices. Earlier reporting indicated that news of the restart contributed to oil selling. However, supply remains impaired: even with September's rebound, regional exports were still about 6 million bpd below February's 18.8 million bpd level.

"The restart should support supply availability and reduce panic in crude markets, but the recovery remains exposed to fresh drone strikes, maritime disruption, and continued conflict around Hormuz and Bab el-Mandeb," noted a market analyst based in Dubai.

Higher transport and insurance costs are also a factor. Diversions between Yanbu and Gulf terminals, ongoing conflict risks, and uncertainty around shipping lanes increase voyage complexity and likely elevate freight, insurance, and security costs for exporters, refiners, and ultimately fuel consumers.

Background: A Strategic Asset Under Threat

The East-West Pipeline has long been Saudi Arabia's principal oil-export contingency route. Its strategic value rises whenever Persian Gulf shipping is constrained, as it enables exports from Yanbu on the Red Sea rather than Gulf ports such as Ras Tanura.

The recent sequence of events began in late February when wider Middle East conflict disrupted flows through the Strait of Hormuz. Saudi Arabia used the East-West route to shift roughly 4 million bpd toward Yanbu. Then, on September 11, drone attacks damaged pumping infrastructure, forcing a shutdown. The pipeline restarted around September 22, but inventories, testing, tanker logistics, and repairs meant recovery was gradual.

By September 28, Saudi and regional export data indicated a substantial overall rebound, much of it enabled by redirected Gulf shipments while the Yanbu route recovered.

What's Next

In the short term, the key question is whether Yanbu tanker loading becomes regular and whether pipeline rates move materially toward the 7 million bpd capacity. The restart should support supply availability, but the recovery remains exposed to fresh drone strikes, maritime disruption, and continued conflict around Hormuz and Bab el-Mandeb.

Medium term, Saudi Arabia is likely to maintain a more diversified export posture, using both Yanbu and Gulf terminals to preserve delivery flexibility. The sharp increase in Ras Tanura shipments shows how quickly the kingdom can reallocate flows, but it also demonstrates the strategic cost of losing the Red Sea alternative.

Long term, the episode reinforces three industry trends: physical energy security increasingly depends on defense against drones and other low-cost attacks; pipelines reduce chokepoint dependence but do not eliminate geopolitical risk; and importers, especially Asian refiners, may place greater value on diversified suppliers, strategic petroleum stocks, flexible refinery configurations, and alternative shipping arrangements.

The positive takeaway is that Saudi export capacity is recovering. The caution is that the broader regional system remains materially below pre-war export levels, and the same geopolitical conditions that caused the outage remain unresolved.

Correction: An earlier version of this article stated that the pipeline was carrying 7 million bpd before the attack. In fact, it was carrying roughly 4-5 million bpd.